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Calculated my FOC last night and it is coming up at 8-9% with a 100 grain head. As you can imagine I want to increase that significantly for a hunting arrow. Total arrow weight is in the neighborhood of 400 grains.

The arrows are Buck Addiction by Victory. They are a 350 spine with a 6.2mm or .245" ID. What is the best way to add a good amount of weight to these arrows?

Does increasing tip weight (going from 115 grains to 200 grains of point and weighted insert) increase the FOC in a linear fashion? Say I add 50% more weight in the tip, does the FOC also increase by 50%?

I have played with the Victory spine calculator and my arrows should be able to hold more weight. My DL is fairly short and my bow is not a speed demon, so I think it will be okay.

I am hesitant to make big changes mid season, until I get a good setup I will continue shooting small fixed broadheads, but in the future I would like to shoot big mechs without worry of penetration. I spined a buck earlier this year, got plenty of penetration with a Montec, but my follow up shot with a Swacker did not pass through.
 

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Calculated my FOC last night and it is coming up at 8-9% with a 100 grain head. As you can imagine I want to increase that significantly for a hunting arrow. Total arrow weight is in the neighborhood of 400 grains.

The arrows are Buck Addiction by Victory. They are a 350 spine with a 6.2mm or .245" ID. What is the best way to add a good amount of weight to these arrows?

Does increasing tip weight (going from 115 grains to 200 grains of point and weighted insert) increase the FOC in a linear fashion? Say I add 50% more weight in the tip, does the FOC also increase by 50%?

I have played with the Victory spine calculator and my arrows should be able to hold more weight. My DL is fairly short and my bow is not a speed demon, so I think it will be okay.

I am hesitant to make big changes mid season, until I get a good setup I will continue shooting small fixed broadheads, but in the future I would like to shoot big mechs without worry of penetration. I spined a buck earlier this year, got plenty of penetration with a Montec, but my follow up shot with a Swacker did not pass through.
no its not linear. the more weight you add the less it gains. remember as you add tip weight you are shifting the center of mass. this means from that point back is getting longer. so as you add tip weight you are also adding rear lever weight.

i would not change midseason.

if you want to shoot big mechs and not worry just keep your FOC 12 to 15% but add mass. mass is what increases penetration. now the location of that mass does matter.

now here is another thought. you shot a montec got good penetration. but the swacker didn't. there is a reasonably short low draw hunters should look more at fixed heads.


"mass is the penetration enhancer"
 

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I would put a 200 grain vpa fixed head on your arrow and call it good. You can get 200 grain field points too. If your bow is tuned I can't imagine much would change other than your point of impact.

Sent from my moto z3 using Tapatalk
 

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I would cut the arrows back as short as you can go. Then load the insert with insert weights till I got to the 500 grain area.

Your foc will be great, your mass will be awesome. Retune and bareshaft tune.

Lose any wraps are lighted knocks, they will just cut down on your foc gains.
 
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